How do you add single free floating vertices as primitives at a given XYZ coordinate postion
It was the Extra Objects addon.

I was going to use it to create a point primitive, so I misrembered it and used the wrong keyterms while searching for it. 

I did have a neat/convenient idea while trying to figure this one out, I'm not sure if that's a seperate question or just an alternate solution though (about the point plotting box). 

So if something like that exists [the enmasse point plotting box], feel free to comment it to me, if it doesn't then I guess I'll have to ask/or/find some more questions later [about making plugins, and creating a tiny little app/menu for that in blender]